主题：【注意】行车安全 -- 黑贼

真是害人不浅呀！！！

玛丽兰交通部的网页上是这么说的：

Maryland law limits the extent to which speed limits may be raised or lowered. The most notable restrictions are those that prohibit any speed limit greater than 65 mph and any limit above 55 mph anywhere except on Interstate highways or other expressways.